821284040

素因数分解:

$2^3\times 5^1\times {\mathrm{20532101}}^1$

素因数の和:20532112

約数の個数: 16

約数和(自身を含む): 1847889180

約数和(自身を除く): 1026605140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20532101, 41064202, 82128404, 102660505, 164256808, 205321010, 410642020, 821284040]

約数ペア:

[(1, 821284040), (2, 410642020), (4, 205321010), (5, 164256808), (8, 102660505), (10, 82128404), (20, 41064202), (40, 20532101)]